When I talk about futuristic UIs, I'm talking about the whole package. Efficient, well designed, well themed, interesting to look at user interfaces. This doesn't automatically translate to unproductive UIs, rather the goal is the opposite. From a functional perspective, Google's dynamic type and search feature is an example of an evolving user interface. Google isn't well known for their presentation skills and so the feature looks like garbage as your browser constantly refreshes the screen. Take the same effect and now instead of refreshing the page you animate the old searches out of view and animate the new search results in. Instant +1 improvement. Another good comparison is Bing maps vs Google maps. Bing maps uses deep zoom tech to smoothly transition into new spots, thus improving the overall experience. Google just shows you a bunch of blocks and you wait for something to pop into existence. Simple things like this are what I believe devs should be taking into account.
A little hollywood flair wouldn't hurt either